Greater London · Ductwork cleaning
Ductwork cleaning in Coldharbour, Greater London
Ductwork cleaning in Coldharbour from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Thick deposits at the bottom of a vertical duct
- A rancid smell from the extract duct
- A duct clean needed for an insurer
Ductwork cleaning in Coldharbour: the local picture
Food Standards Agency data counts about 440 restaurants, cafés and works canteens and about 120 takeaways across Coldharbour and its immediate surroundings (about a mile and a half). Where they cook under a canopy, grease does not stop at the filters: it settles along the duct and up the riser. Fire safety in Coldharbour falls to London Fire Brigade. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk. Overnight is the normal time to clean a London kitchen extract, so trading is not affected.
Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Poplar Hospital is the nearest hospital to Coldharbour, about 0.6 miles north. School kitchens, at schools like Woolmore Primary School for example, are normally cleaned in the holidays so no lunches are lost. If you cook for passing trade around Canary Wharf station, the extract can be cleaned between your last and first customer.
Coldharbour is about 2 miles north of Greenwich, in Greater London. From the centre of Coldharbour to the outskirts, we cover ductwork cleaning for every kind of premises, from a single unit to a large public building. Our area takes in 764 places across Greater London, from busy centres to quieter spots.
Every address in E14, SE10 and E22 is within our area for ductwork cleaning, from busy streets to back roads. That includes premises on Canada Square, Simpson's Road and Amsterdam Road and the roads around them. With the A1206 and A1261 close by, Coldharbour is simple for us to get to for ductwork cleaning. Nearby, we also carry out ductwork cleaning in Blackwall (1 mile north-east), London Docklands (1 mile west), Poplar (1 mile north-west), Canary Wharf (1 mile west) and Heron Quays (1 mile west). We also work in nearby towns such as London (4 miles west), City of Westminster (6 miles west), Marylebone (6 miles west), Kensington (8 miles west), St Pancras (5 miles west) and Shoreditch (3 miles north-west).
Around Coldharbour
Locally, jobs take us to businesses close to Canary Wharf College 3, Mudchute Park and Farm and Tower Hamlets College. The closest station to Coldharbour is Canary Wharf station, about 0.5 miles north-west. Nearby you will also find Old Royal Naval College (1.3 miles south) and Poplar Hospital (0.6 miles north). Open spaces near Coldharbour include Tower Hill and Lavender Pond.
Ductwork cleaning in Coldharbour, done properly
Duct Doctor has cleaned kitchen extract ductwork since 2009, working across London and the South East. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and our certificates are issued through the BESCA Vent Hygiene Elite portal. If you’re dealing with grease leaking from duct joints and a grease test showing the duct is overdue, we can help, from horizontal duct runs, access panels and multi-storey ducts onwards.
Kitchens in Coldharbour, like many across London, can share a building with flats or offices, with the duct running up through shared risers. Grease in a duct like that is a fire risk to the whole building, not just the kitchen, so a regular TR19® clean protects everyone in it.
Nothing is signed off by word of mouth: a written report, dated and illustrated with pictures, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. Any parts we couldn’t reach are recorded on it too.
- Where
- Coldharbour (E14, SE10, E22)
- Wider area
- Greater London
- Paperwork
- Certificate and photo report
- Quote
- A fixed price before any work starts
- When we work
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Staff cleaning versus specialist work
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We will take a look and give you a fixed quote.
Different parts, different methods
Attenuators and discharge
At the end of the duct is the discharge. Grease can collect there and stain the area around it, so it’s cleaned as far as safe access allows.
Vertical risers
Risers carry the extract up through the building to the roof. Grease collects on the walls and at the foot of the riser, so the base is one of our test points.
Fixed quotes for ductwork cleaning in Coldharbour
Every site gets its own quote. These are the things that affect it:
- How many systems or sites are involved
- One-off work versus a regular cycle
- Whether we need access equipment or extra panels
- The condition we find in the survey
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Ask for a fixed quote and we will go through it with you.
Asking for a quote
There’s no need for technical detail. Just send:
- Problems your staff have spotted
- Your opening hours and when the area is out of use
- The paperwork from the last visit, if you have it
- Any access panels or hatches you can see
If you need ductwork cleaning in Coldharbour, call 0345 646 2711 or drop us a line. Let us know the site type and the opening hours, plus photos or the previous report if they’re to hand. We usually send a fixed quote within one working day.
Multi-site and managed buildings
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.
Facilities teams in offices, schools and healthcare sites book us too across Greater London. Work can be phased by floor, building or site to keep disruption down.
Places near Coldharbour
More services for Coldharbour
How it works
There are three stages on the day: set-up, the treatment itself and the sign-off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with photos. Most of the time goes on the work itself, and that takes a shift or more, depending on the length of the runs and the number of access points. Getting kit into a London building takes planning, so let us know where we can load and park in Coldharbour.
- We trace the duct and find every way in.
- Grease thickness is measured at set points.
- Once the kitchen has closed, we protect the area and open the panels.
- Heavy deposits come out by hand, then each section is degreased.
- We close up, re-test, photograph and record anything out of reach.
Getting ready for the visit
- Tell us the best time to work, such as after service or at a weekend
- Clear loose items from the work area
- Arrange a key holder or contact on site
How to get a quote
Need a price for ductwork cleaning? Please give us a ring on 0345 646 2711, or send details by email and tell us about the site. We will explain what we’d do and send a fixed quote before anything is booked.
Read more
Honest limits
Some problems need a different service or another trade:
- Parts of the duct with no way in
- Faulty fire dampers
- A failed fan motor at the end of the duct (a fan repair job)
Not sure which it is? You can call us on 0345 646 2711 or send us an email and we will tell you honestly.
What we work on in Coldharbour
- Vertical risers
- Access panels
- Multi-storey ducts
- Horizontal duct runs
- Bends and junctions
- Attenuators
Your questions about ductwork cleaning in Coldharbour
Who is the fire and rescue service for Coldharbour?
That’s London Fire Brigade. It’s worth keeping your fire risk assessment, TR19® certificates and photo reports together, ready to show.
Do you do school kitchen extract cleaning in Coldharbour in the summer holidays?
Yes. Half-terms and the summer break are the natural time for school work. Around Coldharbour, the Food Standards Agency lists about 46 schools and colleges with registered kitchens within a mile and a half or so. Just call us on 0345 646 2711, or email photos with your term dates and we will plan around them.
Do you have a 24/7 line?
Yes. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line, and we will advise on what to do next.
What information do you need?
Some pictures and a quick description of the system, with the address and opening hours. If we need more, we will ask.
What accreditations do you have?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We’ve been trading since 2009 and we’re fully insured.
What’s involved in cleaning extract ducts?
Through access panels along the duct. Thick deposits are removed by hand before degreasing, such as degreasers, hot water or steam.
What happens to the waste?
Waste is contained during the work and removed when we leave, from grease and debris to used cleaning water. We do not leave it behind.
Do you have insurance?
Yes, fully. We also hold CHAS and SafeContractor for clients who vet their contractors.
Between visits
Good habits slow the build-up between visits. Our tips:
- Do not switch the extract off early
- Have the grease measured if cooking hours go up
- Report any grease dripping from duct joints
- Get panels fitted where the duct couldn’t be cleaned
You’ll have a recommended date for the next clean, worked out from the grease we found and how long you cook each day, in line with BESA guidance.
Keep the fan on throughout service. Moving air carries vapour through rather than letting it settle, so switching off early adds to the build-up.